Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
  ieee1394: add documentation entry to MAINTAINERS
  ieee1394: update URLs in debugging-via-ohci1394.txt

diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
index 59a91e5..611f5a5 100644 (file)
--- a/Documentation/debugging-via-ohci1394.txt
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -64,14 +64,14 @@ be used to view the printk buffer of a remote machine, even with live update.
 
 Bernhard Kaindl enhanced firescope to support accessing 64-bit machines
 from 32-bit firescope and vice versa:
-- ftp://ftp.suse.de/private/bk/firewire/tools/firescope-0.2.2.tar.bz2
+- http://halobates.de/firewire/firescope-0.2.2.tar.bz2
 
 and he implemented fast system dump (alpha version - read README.txt):
-- ftp://ftp.suse.de/private/bk/firewire/tools/firedump-0.1.tar.bz2
+- http://halobates.de/firewire/firedump-0.1.tar.bz2
 
 There is also a gdb proxy for firewire which allows to use gdb to access
 data which can be referenced from symbols found by gdb in vmlinux:
-- ftp://ftp.suse.de/private/bk/firewire/tools/fireproxy-0.33.tar.bz2
+- http://halobates.de/firewire/fireproxy-0.33.tar.bz2
 
 The latest version of this gdb proxy (fireproxy-0.34) can communicate (not
 yet stable) with kgdb over an memory-based communication module (kgdbom).
@@ -178,7 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
 
 Notes
 -----
-Documentation and specifications: ftp://ftp.suse.de/private/bk/firewire/docs
+Documentation and specifications: http://halobates.de/firewire/
 
 FireWire is a trademark of Apple Inc. - for more information please refer to:
 http://en.wikipedia.org/wiki/FireWire

diff --git a/MAINTAINERS b/MAINTAINERS
index 6b05777..d5eb8c1 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2615,6 +2615,7 @@ L:        linux1394-devel@lists.sourceforge.net
 W:     http://www.linux1394.org/
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
 S:     Maintained
+F:     Documentation/debugging-via-ohci1394.txt
 F:     drivers/ieee1394/
 
 IEEE 1394 RAW I/O DRIVER

diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 50f0176..98dbbda 100644 (file)
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -188,14 +188,7 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
 /* Impossible login_id, to detect logout attempt before successful login */
 #define INVALID_LOGIN_ID 0x10000
 
-/*
- * Per section 7.4.8 of the SBP-2 spec, a mgt_ORB_timeout value can be
- * provided in the config rom. Most devices do provide a value, which
- * we'll use for login management orbs, but with some sane limits.
- */
-#define SBP2_MIN_LOGIN_ORB_TIMEOUT     5000U   /* Timeout in ms */
-#define SBP2_MAX_LOGIN_ORB_TIMEOUT     40000U  /* Timeout in ms */
-#define SBP2_ORB_TIMEOUT               2000U   /* Timeout in ms */
+#define SBP2_ORB_TIMEOUT               2000U           /* Timeout in ms */
 #define SBP2_ORB_NULL                  0x80000000
 #define SBP2_RETRY_LIMIT               0xf             /* 15 retries */
 #define SBP2_CYCLE_LIMIT               (0xc8 << 12)    /* 200 125us cycles */
@@ -1034,7 +1027,6 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
 {
        struct fw_csr_iterator ci;
        int key, value;
-       unsigned int timeout;
 
        fw_csr_iterator_init(&ci, directory);
        while (fw_csr_iterator_next(&ci, &key, &value)) {
@@ -1059,17 +1051,7 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
 
                case SBP2_CSR_UNIT_CHARACTERISTICS:
                        /* the timeout value is stored in 500ms units */
-                       timeout = ((unsigned int) value >> 8 & 0xff) * 500;
-                       timeout = max(timeout, SBP2_MIN_LOGIN_ORB_TIMEOUT);
-                       tgt->mgt_orb_timeout =
-                                 min(timeout, SBP2_MAX_LOGIN_ORB_TIMEOUT);
-
-                       if (timeout > tgt->mgt_orb_timeout)
-                               fw_notify("%s: config rom contains %ds "
-                                         "management ORB timeout, limiting "
-                                         "to %ds\n", tgt->bus_id,
-                                         timeout / 1000,
-                                         tgt->mgt_orb_timeout / 1000);
+                       tgt->mgt_orb_timeout = (value >> 8 & 0xff) * 500;
                        break;
 
                case SBP2_CSR_LOGICAL_UNIT_NUMBER:
@@ -1087,6 +1069,22 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
        return 0;
 }
 
+/*
+ * Per section 7.4.8 of the SBP-2 spec, a mgt_ORB_timeout value can be
+ * provided in the config rom. Most devices do provide a value, which
+ * we'll use for login management orbs, but with some sane limits.
+ */
+static void sbp2_clamp_management_orb_timeout(struct sbp2_target *tgt)
+{
+       unsigned int timeout = tgt->mgt_orb_timeout;
+
+       if (timeout > 40000)
+               fw_notify("%s: %ds mgt_ORB_timeout limited to 40s\n",
+                         tgt->bus_id, timeout / 1000);
+
+       tgt->mgt_orb_timeout = clamp_val(timeout, 5000, 40000);
+}
+
 static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
                                  u32 firmware_revision)
 {
@@ -1171,6 +1169,7 @@ static int sbp2_probe(struct device *dev)
                               &firmware_revision) < 0)
                goto fail_tgt_put;
 
+       sbp2_clamp_management_orb_timeout(tgt);
        sbp2_init_workarounds(tgt, model, firmware_revision);
 
        /*